I'm going to London & Brussels at the end of the year. I'm looking for an (relatively) inexpensive hotel option for a gap of a couple days of non-free hotels (using Marriott Points & W14 certs for most of the trip).

I've been doing my research, so I know there is much out there. Based upon my wife's preferences, I suppose I'm seeking a hotel with "character".

Anybody have any favorites or suggestions?